Home to some Mongolian nomads (4)
I believe the answer is:
gobi
'home to some mongolian nomads' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for gobi that I've seen before include "Arid region in central Asia, and 38 across" , "The . . . . Desert is a barren plateau of S Mongolia and N China" , "vast arid expanse" , "Dry spot" , "Large desert plateau of southern Mongolia and northern China" .)